Investigation of parietal polysaccharides from Retama raetam roots

Brahimi, H Bokhari-Taieb; Faugeron, Céline; Hachem, Kadda; Kaïd-Harche, Meriem; Gloaguen, Vincent

doi:10.5897/ajb2015.14754

Cited by 4 publications

(3 citation statements)

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“…It is largely abundant in arid area; this abundance makes it a good candidate for industrial utilization. Moreover, the Retama species contributes to the bio-fertilization of poor grounds because of their aptitude to associate with fixing nitrogen bacteria Rhizobia [17] . Therefore, the genus of the Retama is included in a re-vegetation program for degraded areas in semi-arid Mediterranean environments [18] .…”

Section: Introductionmentioning

confidence: 99%

Extraction and characterization of cellulose microfibers from Retama raetam stems

et al. 2019

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Cellulose is the most abundant renewable resource in nature, it has various industrial applications due to its promising properties. Retama raetam is a wild plant belonging to the Fabaceae family, largely abundant in arid area which makes it a good candidate for industrial utilization. In the present study, highly crystalline cellulose microfibers (77.8% CrI) were extracted from Retama Raetam stems as a novel renewable source. The samples underwent a dewaxing process, then the microfibers were extracted using 7 wt% sodium hydroxide followed by a bleaching treatment. The extracted cellulose microfibers were characterized by Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray Diffraction and thermo-gravimetric analysis.

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Section: Introductionmentioning

confidence: 99%

Extraction and characterization of cellulose microfibers from Retama raetam stems

et al. 2019

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“…Retama raetam species has developed a particularly important root system and is adapted to arid areas. Cellulose remains the major component of the cell wall (27% for young roots and 80% for adult roots), hemicelluloses (14.3% for young roots and 3.6% for adult roots) and pectins (17.3% for young roots and 4.1% for adult roots) (Bokhari et al, 2015). Previous pharmacological studies on this plant have revealed its antibacterial, antifungal, antihypertensive, anti-oxidant, antiviral, diuretic, and hypoglycemic properties, and hepatoprotective, nephroprotective and cytotoxic effects (Maghrani et (Naser et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Factors influencing seed germination of the pastoral plant Retama raetam subsp. bovei (Fabaceae): interactive effects of fruit morphology, salinity, and osmotic stress

Mechergui¹,

Mahmoudi²,

Khouja³

et al. 2017

biologija

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The aim of this work was to study the morphology of retama seeds and the combined effects of salt and water stress on the seeds germination of four Tunisian populations of Retama raetam. Seeds were harvested from Bouhedma National Park, Meknassi, Oueslatia, and Rtiba. In this study we were interested in evaluating different parameters of germination in presence of the salinity and osmotic stress. The results revealed that this species can withstand salinity up to 15 g/l of salt (the germination percentage of the Rtiba population reached 42%) and it can also tolerate severe drought resulted in significant doses of PEG 6000 (germination percentage reached 29% to the water potential of -1.6 MPa of Oueslatia population). The morphological traits of the seeds were measured to find a relationship between the size of the seeds and their germination capacity under salinity and osmotic stress. Results have shown that for the correlation between morphological traits of seeds and the germination percentage, the seed weight is a major factor in promoting germination under stress and confirmed that saline water and sprouting inhibition have impact on the small caliber of seeds.

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“…Moreover, the Retama species contributes to the biofertilisation of poor grounds, because of their aptitude to associate with fi xing nitrogen bacteria Rhizobia. Therefore, the genus of Retama is included in a re-vegetation program for degraded areas in semi-arid Mediterranean environments [13].Retama raetam is a common plant in the North African and East Mediterranean region. In Algeria, it is located in Sahara and Atlas regions and is used in folk medicine under the common name "R'tam" to reduce the blood glucose and skin infl ammations, while in Lebanon it is used as folk herbal medicine against joint aches and in Morocco against skin diseases.…”

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confidence: 99%

Removal of Methylene Blue by Adsorption onto Retama Raetam Plant: Kinetics and Equilibrium Study

Badis¹,

Benmaamar²,

Benkortbi³

et al. 2016

ChemJMold

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Abstract. The feasibility of using medicinal plants species Retama raetam as a low cost and an eco-friendly adsorbent for the adsorption of cationic dye methylene blue from simulated aqueous solution has been investigated. Adsorption kinetics of methylene blue onto Retama raetam plants was studied in a batch system. The effects of pH and contact time were examined. The methylene blue maximum adsorption occurred at pH 8 and the lowest adsorption occurred at pH 2. The apparent equilibrium was reached after 120 min. Optimal experimental conditions were determined. Adsorption modelling parameters for Freundlich and Langmuir isotherms were determined and, based on R 2 , various error distribution functions were evaluated as well. Adsorption isotherm was best described by non linear Freundlich isotherm model. Thermodynamic studies show that adsorption was spontaneous and exothermic. For determining the best-fi t-kinetic adsorption model, the experimental data were analyzed by using pseudo-fi rst-order, pseudo-second-order, pseudo-third-order, Esquivel, and Elovich models. Linear regressive and non-linear regressive method was used to obtain the relative parameters. The statistical functions were estimated to fi nd the suitable method that fi t better the experimental data. Both methods were appropriate for obtaining the parameters. The linear pseudo-second-order (type 9 and type 10) models were the best to fi t the equilibrium data. The present work showed that plant Retama raetam can be used as a low cost adsorbent for the removal of methylene blue from water.Keywords: Retama raetam, methylene blue, removal, modelling, adsorption. IntroductionThe textile industry is one of industrial waste water source. This contaminated water is very toxic for the humans and animals [1]. Methylene blue is used in colouring paper, dyeing cottons, wools, silk, leather and coating for paper stock. Although methylene blue is not strongly hazardous, it can cause some harmful effects, such as heartbeat increase, vomiting, shock, cyanosis, jaundice, quadriplegia, and tissue necrosis in human organisms [2].Chemical coagulation-fl occulation [3], different types of oxidation processes [4], biological process [5], membrane-based separation processes [6] and adsorption [7] were the treatments used in the purifi cation of waters. The most effi cient method used for the quickly removal of dyes from the aqueous solution is the physical adsorption [8]. Biosorbents, such as wood sawdust [9], waste-biomass [10], delonix regia [11], agricultural solid waste [12], are able to remove effi ciently the colour from water.Retama raetam plants can be used as biosorbent. This species belonging to the Fabaceae family has a very productive vertical and horizontal root system, which can reach 20 m. This, in turn, increases substantially the stabilization of the soil. Moreover, the Retama species contributes to the biofertilisation of poor grounds, because of their aptitude to associate with fi xing nitrogen bacteria Rhizobia. Therefore, the genus of Retama is ...

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Investigation of parietal polysaccharides from Retama raetam roots

Cited by 4 publications

References 20 publications

Extraction and characterization of cellulose microfibers from Retama raetam stems

Extraction and characterization of cellulose microfibers from Retama raetam stems

Factors influencing seed germination of the pastoral plant Retama raetam subsp. bovei (Fabaceae): interactive effects of fruit morphology, salinity, and osmotic stress

Removal of Methylene Blue by Adsorption onto Retama Raetam Plant: Kinetics and Equilibrium Study

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